Stool



FIG. 1 is a front perspective view of a stool showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines shown in the drawings are for the purpose ofillustrating portions of the article, and form no part of the claimeddesign.

CLAIM The ornamental design for a stool, as shown and described.